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Publication
Morfologias de talude instável em contexto de rifting : exemplo do Jurássico Superior da Bacia Lusitânica
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Authors
Advisor(s)
Abstract(s)
The second rifting episode of Lusitanian Basin reached a climax during Upper Jurassic. After a transgressive event in the Oxfordian,
an intense tectonic subsidence lead to the definition of three sub-basins in the central region. In the Montejunto area, the edge of
the rupture was studied. Different depositional geometries resulted from an interpreted fault, which boundes a platform realm to NE
from a deep basin situation to SW. Turbidite facies, olistholits, debris-flow events and coarse sandy lobes of deep sedimentation are
described. Karstification evidences are noted as well, resulting from the emersion of shelf faulted blocks, during the extensional
faulting.
Description
Keywords
Estabilidade de taludes Rifting Carsificação Turbidites Jurássico superior Bacia Lusitaniana (Portugal)
Pedagogical Context
Citation
Reis, Rui Pena - Morfologias de talude instável em contexto de rifting : exemplo do Jurássico Superior da Bacia Lusitânica. In: VI Congresso Nacional de Geologia, Monte de Caparica, 4 a 6 de Junho de 2003 : [Comunicações]. Monte de Caparica : Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia, 2003, CD-ROM, p. C65-C68